Cotton-seed linter.



P. A. HOEFER.

COTTON SEED LINTER.

APPLICATION FILED AUG. 29, 1912.

1,1 14,475. Patented Oct. 20, 1914.

UNITED s'r 'rns rAIENToFFIon I FREDERICK AUGUSTUS nonrna, on ooLuMnrA,sonrn CAROL NA, AssIGNon uron: IE. SESSIONS, or COLUMBIA, SO THCAROLINA.

' oo'r'ron-snnn ninrnn.

To all whom it may concern: Be 1t known that I, -Fnnonnion AUGUSTUSHonrnn, a citizen of the United States, re-

siding at Columbia, Richland county, State of South Carolina, haveinvented certain new and useful Improvements in Cotton- Seed Linters, ofwhich the following is a specification. v

This invention relates to the classof machines described in the patentto H. E. Sessions No. 962,722, granted June 28, 1910 and has particularreference to the means for presenting the seed to the saw cylinder forthe purpose ofremoving the lint. It has been my purpose to secure a moreeven movement of the seed in the roll above thesaws and to avoidchokingand the consequent friction and resistance to movement.

The novel features will be apparent from the following description takenin connection with the drawings. r

In the drawing I have shown a vertical transverse section of amachinehaving my invention applied thereto.

As will be understood by those skilled in the art the purpose of themachine is to remove the fine lint which is on the cotton seed afterthey have passed through the ordinary gin and the machine itselfincludes as its essential elements a casing 1, in which there is mounteda saw cylinder 2 which has on it a gang of saws passing between the ribs3 into-the space where the seed are fed. A brush cylinder 4: is mountedat the rear of the saw cylinder and brushes the lint from the saw teethdown into the chamber beieath and this brush cylinder by its motioncreates a draft out through the discharge flue 5, the fine lint passingup over the mold board 6 which is preferably arranged as described inthe above mentioned patent to Sessions.

Above the saw cylinder there is a casing formed by the rear curved wall7 and the front curved wall 8, these walls terminating at the top atsuch points that there is an inlet opening 9 left for the admission ofseed fed down by the feeding mechanism 10. An agitator 11 is placedlongitudinally within the said casing and it is provided with wings androtates in such a way as to turn the roll of seed in the chamber in thesamedirection that the saws tend to turn it.

The features of the machine so far de- Specification of Letters Patentscribed do not constitute my invention but I have found that with theparts so arranged the) roll of seed carried around by the agita-Patented Oct. 20, 1914. Application filed August 29, 1912. SerialNo.717,801."ff

tor 11 and the sawswill bank up in front of the upper end of the frontwall 8 forming a ridge and that this interferes withthe free beingproperly fed to the saw teeth extendoperation of the machine, causingfriction I ing through the ridge 3. It will be observed that in the formshown the front wall terminates at a point higher than the termination ap of the rear wall and the seed are fed in from the rear at this point.I have found that by placing a narrow board 12 along the end of thefront wall 8 and constituting a horiz0n-- tal extension thereof willvery materially improve the action of the device. I preferably inclinethe rear edge 18 of this board upward since this incline or rounded edgemakes the seed pass under the board more easily. It will further beobserved, from the drawing that this board 12 extends out approximatelyabove the center of the agitator 11, or in other words, to the center ofthe: l

roll of seed which is turned by that agitator. I find that thisarrangement serves to prevent the banking up of the seed in front of thefront wall and makes them pass in smoothly and without friction, thuscausing them to be properly presented to the saw teeth withoutunnecessary exercise of force. This board 12 can be applied to manylinters now on the market without reconstructing] those machines ormaking any other material change in the structure. I findthat by the useof this invention a materially greater amount of seed can be delinted bythe machine within any given time without requiringany more power to runthe machine. .Having thus described the invention what I claim as newis: I y

Y 1. In a cotton seed linter, thecombination witha gang of saws, of ribsbetween which theywork, a casing having curved Walls above said sawcylinder to retain a roll of seed above and in contact with said sawsand ribs, the said walls being separated at the top to have an inletopening and the front wall terminating at a higher level than the rearwall, a flat board extending rearward from the edge of the front wallsubstantially I as far as the center line of saidroll of seed and-havingan upwardly turned rear edge,

and a central rotary agitator in said casing extending longitudinally ofsaid roll to turn the same.

2. In a cotton seed linter, the combination with agang of saws, of ribsbetween which they work, a casing having curved walls above said sawcylinder to retain a roll of seed above and in contact with said sawsand ribs, the said walls being separated at the top to have an inletopening and the front wall terminating in a horizontal por-' tion at ahigher level than the end of the rear wall, the said horizontal portionextending rearward substantially to the center line of said roll of seedand having an upwardly rounded edge, and a central rotary agitator insaid casing extending longitudinally of said roll to turn the same.

8. In a cotton seed linter, thecombination with a gang of saws, of ribsbetween which "seed above and in contact with said saws and ribs, thesaid Walls being separated at the top to have an inlet opening, the rearwall terminating at a point behind the center line of the roll and thefront wall terminating in a horizontal board extending rearward as faras the center line of said roll, a space being left for the entrance ofseed between the ends of said walls, and a central rotary agitatorwithin said casing for turn ing said roll.

In testimony whereof I affix my signature in presence of two witnesses.

FREDERICK AUGUSTUS HOEFER.

W'itnesses:

J. W. LEVER, T. D. WRAY.

Copies of this patent may be obtained for five cents each, by addressingthe Gommissioner of Iatents,

Washington, I). G.

